. >>> kids are selling fireworks across from the marcus aurelius arch.at libya was once a vital part of the ancient roman empire. that was nearly 2,000 years ago. tonight i was told was going to be an even bigger, wilder celebration in martyrs square, but something has happened since last night. the british foreign office has just told all uk citizens to leave benghazi, libya's second largest city, due to an unspecified threat. the libyan government, such as it is, has denied any basis for such drastic action. a lone cherry bomb now and again, an awkward flurry of roman candles. the buzz of last night's chaotic party parched, big time. whether or not this is a result of the larger geopolitical situation, the vibe towards this western film crew seems apprehensive, uncertain. the following day feels better, somewhat. fresh produce is for sale on tripoli streets. if you were a small restaurant, or shopping for a big family, you'd bring cash, a wheelbarrow, and load up with what you need, but the revolution has brought changed tastes. libyans, especially you